I've been using the same process for months to generate a new Page Token via Graph Explorer. I used to select the app, then select Page under the User or Page option. Now when I select Page it pops up a window to reconnect my account and after finishing it the drop down switches back to User. I can't find a way to generate a page token.
Hi Frank, I am having the same issue. Nothing works, I even tried creating a new app, but it asks to confirm the log in info, which means an app test and for that you need a page token otherwise the test won't work.
I've tried opening a ticket for a bug too, but everything you click on, Meta says there's no support for the topic. It's so frustrating working with them.